Regulating assembly and conveyor

ABSTRACT

A dual motion divider for articles moving along a conveyor belt has an intake lane defining member with elongated parallel spaced partition walls defining an intake lane for articles carried on an associated conveyor belt. The member is pivotable at its article receiving end in an arc extending transversely of the partition walls and movable at its other end along an axis parallel to the partition walls. The divider also has a discharge lane defining member with a multiplicity of elongated parallel spaced partition walls defining a plurality of discharge lanes for the articles. The discharge lane defining member is pivotable at its article discharging end in an arc extending transversely of the partition walls and movable at its other end along an axis parallel to the partition walls. The movable ends of the members are adjacent each other and a drive assembly is connected to each of the lane defining members to move concurrently the movable ends in opposite directions and bring the intake lane into alignment with a predetermined one of the discharge lanes. A regulating assembly is provided adjacent a point along the intake lane to permit a predetermined number of articles to pass a point in the intake lane before the intake lane is moved into alignment with a predetermined discharge lane.

This is a divisional of application Ser. No. 08/150,688, filed on Nov.10, 1993, now U.S. Pat. No. 5,411,129 granted May 2, 1995.

BACKGROUND OF THE INVENTION

The present invention relates to a conveyor system for packagingmachines, and, more particularly, to a conveyor system channellingcontainers into a multiplicity of lanes.

Manufacturers and bottlers utilizing bottles and like containersgenerally require a conveyor system which will evenly distribute bottlesinto a number of discharge lanes leading into case packing machinery orlike equipment. Round bottles may be placed in a specific pattern on aconveyor belt at the intake end of the discharge lanes. As the beltcarries them into the discharge lanes, they will retain the pattern,leading to proper distribution into the discharge lanes without specialmechanical dividers. Non-round bottles, however, have inherentinstability due to their irregular shape and generally will notdistribute among the discharge lanes without a divider to properly spacethem.

Traditional mechanical dividers often provide a single pivotable intakelane for delivering a predetermined number of bottles into one ofseveral parallel stationary discharge lanes, which is then pivoted intoalignment with an adjacent discharge lane. Uniform distribution isobtained as the intake lane moves across the discharge lanes.

For the intake lane to change from one discharge lane to another withoutcreating a jam, it is also desirable that the divider be provided withmeans to create a space between the bottles. The space must bedimensioned so as to allow sufficient time for the intake lane to movebetween adjacent discharge lanes.

Several mechanisms have been used to accomplish this separation. In one,a braking system temporarily narrows the width of the intake lane,thereby stopping the flow of bottles. In another, a star wheel or wormgear may contact each bottle and establish a spacing as the bottle movesthereby which is sufficient to permit a change in position of the intakelane. These control mechanisms may also be used to stop flow entirelywhen there is an adverse condition such as downstream overload.

Several problems have been noted with a divider system in which only theintake lane pivots. Because the intake lane must traverse the entiredistance between the discharge lanes, the time for a lane change issubstantial from one side to the other of the lane array. This requiresa substantial space between bottles to avoid a jam. Additionally, theintake lane must be angled more greatly from the line of travel of theconveyor belt to align with the outermost discharge lanes. In thisposition, the driving force of the conveyor belt drives the bottlesagainst the side of the intake lane, creating drag and potential bottlerotation. Both effects reduce the overall throughput of the dividersystem.

Moreover, when the intake lane is positioned at a substantial angle tothe line of travel of the belt, there is a sharp angle between theintake lane and the discharge lanes which are aligned with the line oftravel of the conveyor belt. A bottle traveling down the intake lanewill undergo a substantial directional change to enter the outerdischarge lane, which may cause bottle rotation. In this position, thereis usually a resultant gap between the adjacent ends of the partitionwalls defining the intake lane and the discharge lane, increasing thelikelihood of bottle rotation or jamming.

The traditional methods for creating the necessary bottle spacingproduce their own set of problems. The above described braking systemsmust engage each time that the intake lane changes to a new dischargelane. This constant braking and releasing may permit the bottles to hitone another causing noise, possible glass fracture, and deformations ofplastic containers. Additional problems include potential discharge ofbottles from the conveyor and damage to their sides or labels.

Worm screw systems provide separation between every bottle and permit alane change between any two adjacent bottles. However, the space aroundeach bottle reduces overall system performance. Additionally, adifferent worm screw is needed for each bottle size, requiringrepetitive part changes, expense, and the risk of part unavailability.The same problems arise when a conventional star wheel is used toprovide separation between every bottle.

It is an object of the present invention to provide a novel lane dividerassembly for bottles and the like which reduces the time required for aninput lane to move into alignment with a new discharge lane, therebyreducing the spacing required between bottles.

It is also an object to provide such a lane divider assembly whichincludes means for briefly stopping bottles to establish separationtherebetween.

It is a further object to provide such a lane divider assembly whichreduces the angle of travel required of a bottle in the input lanerelative to the line of travel of the conveyor belt.

It is another object to provide such a line divider assembly withreduced angles and gap between the adjacent ends of the input lane anddischarge lanes.

SUMMARY OF THE INVENTION

It has now been found that the foregoing and related objects can bereadily attained in a dual motion divider for articles moving along aconveyor belt having an intake lane defining member with elongatedparallel spaced partition walls defining an intake lane for articlescarried on an associated conveyor belt. The member is pivotable at itsarticle receiving end in an arc extending transversely of the partitionwalls and movable at its other end along an axis parallel to thepartition walls. A discharge lane defining member has a multiplicity ofelongated parallel spaced partition walls defining a plurality ofdischarge lanes for articles carried on an associated conveyor belt. Thedischarge lane defining member is pivotable at its article dischargingend in an arc extending transversely of the partition walls and movableat its other end along an axis parallel to the partition walls. Themovable ends of the members are adjacent each other.

A drive assembly is connected to each of the lane defining members tomove concurrently the movable ends in opposite directions and bring theintake lane into alignment with a predetermined one of the dischargelanes.

A regulating assembly is provided adjacent a point along the intake laneto permit a predetermined number of articles to pass a point in theintake lane before the intake lane is moved into alignment with apredetermined discharge lane.

Preferably, the lane defining members each include a pair of lanesupport members at the ends thereof and the partition walls aresupported thereby.

Desirably, the lane support members at the movable ends of the lanedefining members include a first slide member slidable on a first slidesupport member positioned above and extending transversely of thepartition walls. A second slide member is operatively supported upon thefirst slide member and slidable on a second slide support memberparallel to the partition walls. The slide members allowing the movableend of the lane defining members to move in an arc.

It is preferable that the drive means includes a pinion gear positionedbetween the movable ends of the lane defining members and rack gearsmounted upon each of the movable ends. The rack gears engage oppositesides of the pinion gear and being movable as the pinion gear rotates toalign the intake lane with a predetermined discharge lane.

The regulating assembly preferably has a star wheel rotatably mountedadjacent a point along the intake lane. The star wheel has not less thantwo nor more than three arms configured and dimensioned to be spacedfrom the intake lane and movable into the intake lane in the path of anassociated article in the lane to restrain the associated article andcreate spacing between adjacent associated articles. A slidable nosemember is positioned adjacent a first one of the arms of the star wheelto slidably engage the arm and rotate the star wheel, thereby causingthe arm to move into the intake lane.

A second one of the arms is engageable with the nose member to preventthe first arm from rotating out of the intake lane after engagement ofthe first arm with an associated article. Preferably, the nose member isoperatively actuated by a piston/cylinder assembly to move the nosemember between a first position spaced from the first arm and a secondposition engaging the first arm. The member is operatively connected tothe piston/cylinder by means of a spring whereby movement of the nosemember is effected through the spring.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a dual motion lane divider assemblyembodying the present invention, shown on a fragmentary illustratedconveyor;

FIG. 2 is a fragmentary sectional view thereof along the line 2--2 ofFIG. 1, drawn to an enlarged scale;

FIG. 3 is a fragmentary plan view of the slide assemblies thereof, andwith portions broken away to show internal detail;

FIG. 4 is a partially schematic plan view of the intake lane thereofaligned with an outermost discharge lane, with lane support structureshown in phantom line;

FIG. 5 is a view similar to FIG. 4, but with the intake lane alignedwith the other outermost discharge lane;

FIG. 6 is fragmentary view of one of the slide assemblies and the driveassembly of FIG. 2 with portions broken away to show detail, and drawnto an enlarged scale;

FIG. 7 is a perspective view of the star wheel spacing assembly thereof,drawn to an enlarged scale, and shown mounted on a portion of the intakelane;

FIG. 8 is a plan view of the star wheel thereof, drawn to an enlargedscale;

FIG. 9 is a perspective view of the nose portion of the star wheelspacing assembly, drawn to an enlarged scale, showing a spring and aportion of the actuator;

FIG. 10 is a fragmentary side elevational view of the star wheel spacingassembly, drawn to an enlarged scale, with parts broken away to showinternal detail;

FIG. 11 is a sectional view of the star wheel assembly along the line11--11 of FIG. 7, including bottles and adjacent structure, and showingthe nose engaging the star wheel to maintain it in a position outwardlyof the intake lane line of travel, and with the retracted position ofthe nose shown in phantom line; and

FIGS. 12-14 are views similar to FIG. 11, but showing the star wheelprogressing into a bottle retarding position.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Turning first to FIGS. 1 and 2, a divider assembly embodying the presentinvention is illustrated therein as having a plurality of parallelspaced intake partition walls 12 and a plurality of parallel spaceddischarge partition walls 16 forming an intake lane 14 and a pluralityof discharge lanes 18, respectively. The lanes 14, 18 are for articles28, seen in FIGS. 11-14, carried by a conveyor belt 26, the uppersurface of which moves in the direction of the arrow in FIG. 1.

A pivotable intake lane support assembly generally designated by thenumeral 20 supports the upstream ends of the intake partition walls 12,while the pivotable discharge lane support assembly 21 supports thedownstream ends of the discharge partition walls 16.

A slidable intake lane support assembly generally designated by thenumeral 22 supports the downstream ends of the intake partition walls12, while the slidable discharge lane support assembly 23 supports theupstream ends of the discharge partition walls 16. The slidable lanesupport assemblies 22, 23 allow those ends to swing in arcs in a planeparallel to the plane of the conveyor belt 26.

The pivotable lane support assembly 20 and the slidable lane supportassembly 22 which support the intake partition walls 12 are joined toeach other by support brackets 72 to maintain the intake partition walls12 in a parallel spaced relationship. The discharge partition walls 16are maintained in a parallel spaced relationship in the same manner bybrackets 73.

A drive assembly generally designated by the numeral 24 is connected toeach of the slidable lane support assemblies 22, 23 and permits thedownstream ends of the intake partition walls 12 and the upstream endsof the discharge partition walls 16 to move simultaneously equaldistances in opposing directions. This permits the intake lane 14 toalign with a designated discharge lane 18, both closely in spacing andin axial orientation.

A star wheel assembly generally designated by the numeral 30 issupported on the outwardly facing surface of one of the intake partitionwalls 12 and permits a predetermined number of articles 28 to pass agiven point in the intake lane 14 before the lane 14 is moved to engagethe next designated discharge lane 18.

As best seen in FIGS. 1 and 2, both the intake partition walls 12 andthe discharge partition walls 16 are spaced slightly above the conveyorbelt 26 and extend vertically upwardly. The end portions of thepartition walls 12, 16 are substantially higher than the intermediateportion to facilitate fastening of the partition walls 12, 16 to thesupport assemblies 20, 21 and 22, 23. Adjacent the upper margins of theend portions of the partition walls 12, 16 are mounting slots 34 forseating on the support assemblies 20, 21 and 22, 23.

The pivotable lane support assemblies 20, 21 include a pair ofupstanding support legs 36 which are positioned to the sides of theconveyor belt 26 and support a pair of parallel spaced horizontal uppersupport bars 38 which are positioned above and extend transversely ofthe conveyor belt 26. Spaced below and pivotably supported on the uppersupport bars 38 by the pivot member 40 and an opposing set of flangedbearings 42 is a mounting bracket comprised of the horizontal member 44and depending legs 46. A threaded rod 48 has its ends seated in the legs46 and is spaced below the horizontal member 44 of the bracket and itextends through the mounting slots 34 of the upstream ends of the intakepartition walls 12 and the downstream ends of the discharge partitionwalls 16. Washers 52 and nuts 50 secure these ends of the walls 12, 16in fixed positions along the length of the rod 48.

Referring to FIGS. 1-3 and 6, each slidable lane support assembly 22, 23has a pair of upstanding support legs 36 positioned to the sides of theconveyor belt 26, and supporting the ends of the parallel spaced sliderods 54. A pair of lower slide blocks 56 is slidably mounted in spacedrelationship on the slide rods 54 and have bushings 58 in the bores 59through which the slide rods 54 extend.

A yoke 60 is mounted on the upper surface of the slide blocks 56 so thatthe web portion thereof extends in the direction of movement of theconveyor belt 26. The legs of the yoke 60 seat the ends of an upperslide rod 62 which extends at a right angle to the slide rods 54 andwhich extend through a bore 65 in the slide block 64 for relativeslidable movement parallel to the line of travel of the conveyor belt26. Pivotably mounted on the upper surfaces of the upper slide blocks 64is a horizontal support bar 66 for pivotal movement in a plane parallelto the plane of the conveyor belt 26. Depending from the ends of thesupport bar 66 are rod support brackets 68 having horizontally extendingslots 70 through which the slide rods 54 extend. The horizontal slot 70is dimensioned so that the slide rods 54 will not contact the supportbrackets 68 as the support bar 66 rotates relative to the slide rods 54.A threaded rod 48 extends between the rod support brackets 68 parallelto the support bar 66, and through the mounting slots 34 on thedownstream ends of the intake partition walls 12 or the upstream ends ofthe discharge partition walls 16. Washers 52 and nuts 50 secure the endsof the walls 12, 16 in a fixed position along the length of the rods 48.

On each side of the intake partition walls 12, connector bars 72 extendbetween brackets 46, 68 of the support assemblies 20, 22 respectively.On each side of the discharge partition walls 16, the support brackets46, 68 are connected in the same fashion by connector bars 73. Theconnector bars 72, 73 maintain the parallel spaced relationship of thepartition walls 12, 16.

Referring in detail to FIG. 1-3 and 6, the drive assembly 24 isgenerally positioned between the two adjacent slidable lane supportassemblies 22, 23. The servomotor 74 is mounted upon the platform 76which extends between the support legs 36.

The shaft 78 extends downwardly from the servomotor 74 and has a piniongear 80 thereon which meshes with rack gears 84 on opposite sidesthereof, and the rack gears extend transversely of the path of travel ofthe belt 26. The rack gears 84 are mounted on rack support bars 82 whichare fastened to the lower slide blocks 56 of the slidable lane supportassembly 22, 23.

Lead wires 85 connect the servomotor 74 to a computer control system(not shown) for accurate positioning of the intake lane 14 with respectto the discharge lanes 18 as will be described more fully hereinafter.

As seen in FIGS. 7-14, the star wheel assembly 30 is mounted on theoutwardly facing surface of one of the intake partition walls 12 and ithas a pneumatic cylinder 86 which extends along the outwardly facingsurface of the intake partition wall 12. The piston rod 88 extendsdownstream from the cylinder 86 and connects the coupler 90 to anactuator 92 which has a generally cylindrical portion 94 where it isfastened to the coupler 90, and an elongated flat portion 96 extendingdownstream thereof.

Thus, the longitudinal axis of the flat portion 96 is coaxial with theaxis of the piston rod 88. An elongated horizontal slot 98 extends alongmost of the length of the flat portion 96 of the actuator 92, and a pin100 is mounted on the front surface of the flat portion 96 forwardly ofthe slot 98.

Mounted on the actuator 92 is an elongated nose or stop member 102 whichhas its front surface 104 and back surface 106 converging at its forwardend to form a rounded abutment portion 108. A groove 110 with arectangular cross section extends from the rearmost margin of the frontsurface 104 to a point adjacent the forwardmost margin of the frontsurface 104. A pair of spaced pins 112 extends horizontally from thebase 114 of the groove 110, and a pin 118 extends vertically between theside walls 116 of the groove 110. The nose 102 and the actuator 92 areassembled with the flat portion 96 of the actuator 92 lying in thegroove 110 of the nose 102, and with the pins 112 on the bottom wall 114of the groove 110 seating in the slot 98 of the actuator 92. The forwardand rearward motion of the actuator 92 is translated to the nose 102solely by means of a spring 120 which extends from the pin 100 on theactuator 92 to the transverse pin 118 on the nose 102. The pins 112 onthe nose 102, the slot 98 on the actuator 92, and the spring 120 aredimensioned and configured so that the forwardmost pin 112 will beengaged by the forwardmost portion of the slot 98 on the actuator 92 forpositive engagement between the actuator 92 and the nose 102 when thepiston rod 88 is retracted. However, the rearmost pin 112 of the nose102 rarely contacts the rearmost portion of the slot 98 of the actuator92. Accordingly, as the piston rod 88 is extended, the actuator 92 willmove in a forward, downstream direction. The spring 120 will begin toextend until the force of the spring is sufficient to move the nose 102in the same direction.

A housing 124 with a generally U-shaped cross section is mounted on theouter surfaced of the intake partition wall 12, and the actuator 92 andnose 102 extend into the housing 124 through its rearmost end.

A star wheel 126 is rotatably mounted on a vertical shaft 128 extendingbetween the upper wall 130 and the lower wall 132 of the housing 124adjacent its forward end. As seen in FIGS. 11-14, a rectangular slot 134in the front wall 136 of the housing 124 is aligned with a rectangularslot 138 in the partition wall 12 to allow free rotation of the starwheel 126 therein and extension of the star wheel into the path of thebottles 28 in the intake lane.

As best seen in FIG. 8, the star wheel 126 has three identically shapedarms 140, and is pivotable about the axis defined by the bore 141.

The sides of each arm 140 have concave surfaces 142 adjacent their outerends and join to form a rounded tip 144.

Adjustably threaded support assemblies 146 are provided to permitadjustment of the position of the housing 124 relative to the opening inthe wall 12.

As best seen in FIGS. 1 and 2, the intake partition walls 12 has alignedvertical slots 152 above the housing 124 of the star wheel assembly 30.Adjacent the vertical slot 152 in one wall 12 is a bracket 154supporting a reflector 150 in a position aligned with the slot 152.Mounted on the other wall 12 is a photoelectric sensor 148 which isaligned with the slots 152 and the reflector 150. This photoelectricsensor 148 is connected to the computer control system (not shown) andcounts the number of bottles passing along the intake lane 14.

In using the dual motion divider for non-round bottles 10, informationis provided to the computer control system (not shown). Such informationincludes the dimensioning and configuration of the bottles, the numberof discharge lanes, the number of bottles desired per discharge lane,and the relative controlled positions and sequence of positioning forthe movement of both the intake lane and the discharge lanes.

A multiplicity of bottles 28 are directed into the intake lane 14upstream of the dual motion divider of the present invention. Theapplicable downstream equipment (not shown) such as a carton packer isthen actuated.

Once the conveyor belt 26 is started, the bottles 28 begin to pass thephotoelectric sensor 148 and a counting sequence is commenced.Specifically, the photoelectric sensor utilizes polarized light to alloweven a clear bottle to break the photoelectric beam.

Once a predetermined number of articles 28 have passed the photoelectricsensor 148, the star wheel assembly 30 is actuated. As seen in FIG. 11,the star wheel 126 begins in a position where all of its arms 140 areoutside of the intake lane 14, which is possible since the star wheel126 has only three segments 140. Actuation of the star wheel assembly 30begins with the pneumatic cylinder 86 extending the piston rod 88 in aforward or downstream direction. Through the coupler 90, the actuator 92is also moved in the same direction, and the movement of the pin 100away from the vertical pin 118 of the nose 102 expands the spring 120until it exerts sufficient force to cause the nose 102 to move in aforward or downstream direction from the position shown in phantom lineto the position shown in solid line. As previously stated, the nose 102advances only by reason of the force of spring 120. In its forwardposition, the nose 102 begins to engage the closest arm 140 of the starwheel 126, and specifically concave surface 142 thereon.

Referring to FIG. 12, as the nose 102 continues to move in a forward ordownstream direction, it causes the star wheel 126 to rotate and thecontacted arm 140a to contact the side of a passing bottle 28. The useof the spring 120 as the sole means of advancing nose 102 prevents theapplication of substantial force on the side of the bottle 28 and thepotential for jamming.

Referring next to FIG. 13, as the engaged bottle 28 continues to movedown the conveyor belt 26, the arm 140a of the star wheel 126 begins towork into the gap between the contacted bottle 28 and the bottle 28which follows.

Referring next to FIG. 14, the movement of the bottles 28 causes thestar wheel 126 to continue to rotate until the arm 140b, following thesegment 140a in the lane, abuts the nose 102 and locks the initial arm140a in a path of the bottles 28 in the intake lane 14, to create a gapbetween the bottles 28.

Referring to FIGS. 3-5, once the gap between the bottles 28 reaches theinterface between the intake lane 14 and the discharge lanes 18, thecomputer control system (not shown) actuates the servomotor 74 which inturn rotates the pinion gear 80 causing the rack gears 84 to move inequal and opposite directions. Movement of the rack gears 84 which aremounted on the lower slide blocks 56, causes them to move along theslide rods 54. The upper slide blocks 64 move along the upper slide rods62 to compensate for the fact that all points on the slide rods 54 arenot equidistant from the pivot member 40. The movement of the lowerslide blocks 56, upper slide blocks 64, and related structure causesmovement and proper alignment of the intake lanes 14 and discharge lanes18. When the lanes are aligned, the intake partition walls 12 anddischarge partition walls 16 will be substantially aligned.

Once the partition walls 12, 16 have been moved to their new location,the computer control system (not shown) actuates the cylinder 86 toretract the piston rod 88 and thereby draws the actuator 92 rearwardlyor in an upstream direction. When the actuator 92 moves in thisdirection, the forwardmost pin 112 on the nose 102 is engaged by theforwardmost portion of the slot 98 on the actuator 92, and the nose 102is withdrawn. Once the nose 102 is spaced from the blocked arm 140b ofthe star wheel 126, the star wheel 126 is again free to rotate out ofthe intake lane 14, and the bottles 28 resume their normal travel andspacing.

Optionally, numerous control systems known in the art may be employedwith the dual motion divider of the present invention. By way ofexample, an additional photoelectric sensor may be employed to assurethat there is a gap in the bottles 28 at the juncture of the intakepartition walls 12 and discharge partition walls 16, prior to actuationof the servomotor 74 and attendant movement of the partition walls 12,16. Additionally, an interlock system may be provided to prevent releaseof the star wheel 126 from a blocking position if the motor operatingthe downstream equipment, such as the case packer, is not operating.Further, a sensor may be employed to detect a high level of bottlesdownstream of the dual notion divider and prevent further flow past thestar wheel assembly 30. Finally, a detector may be used in the upstreamposition from the dual motion divider to verify that there is asufficient supply of articles in the intake lane 14.

Although reference is made to non-round bottles throughout thisspecification, the dual motion divider 10 may be employed for the othertypes of articles as well.

Although the illustrated embodiment utilizes only a single intake lane,two or more intake lanes may be provided, albeit with some greatercomplexity of control in the lanes to be aligned.

Thus, it can be seen from the foregoing detailed specification andattached drawings that the novel dual motion divider of the presentinvention provides a reduction in the amount of time required for aninput lane to move to a new discharge lane and reducing the necessaryspacing between the bottles. The separation means is employed to brieflystop a single bottle. Additionally, the dual motion divider reduces themaximum angle of travel required of a bottle in the input lane andprovides reduced angular deviation and gap between the partition wallsof the input lane and a designated discharge lane.

Having thus described the invention, what is claimed is:
 1. A regulatingassembly for an intake lane of a conveyor belt system for carryingarticles, said assembly comprising:(a) a star wheel rotatably mountedadjacent a point along said intake lane and having not less than two normore than three arms configured and dimensioned to be spaced from saidintake lane and movable into said intake lane in the path of anassociated article in said lane to restrain said associated article andcreate spacing between adjacent associated articles; and (b) a slidablenose member positioned adjacent a first one of said arms of said starwheel to slidably engage said arm and rotate said star wheel, thereby tocause said arm to move into said intake lane, a second one of said armsof said star wheel being engageable with said nose member to preventsaid first arm from rotating in to the intake lane after engagement ofsaid first arm with an associated article.
 2. The regulating assembly inaccordance with claim 1 wherein said nose member is operatively actuatedby a piston/cylinder assembly to move said nose member between a firstposition spaced from said first arm and a second position engaging saidfirst arm.
 3. The regulating assembly in accordance with claim 2 whereinsaid member is operatively connected to said piston/cylinder by means ofa spring whereby movement of said nose member is effected through saidspring.